with chantix and with the support system it worked. it worked for me. [ male announcer ] ask your doctor if chantix is right for you. >>> welcome back. it is a huge travel day, so let's get to the world's busiest airport and check it out. abc's gabe gu teeres is in atlan atlanta. >> good morning, maria. traffic is moving along pretty well. as well as can be expected here at the world's busiest airport. no major delays to report or at any of the other major aports. this is a busy week. according to triple a, 93 million americans are expected to travel, the vast majority traveling by car. the ones who can avoid snow and ice, there is good news. gas prices down to an average of $3.24 a gallon. that's down almost 20 cents since last month. the drivers and flyers this week, what they need to pay attention to is this winter storm moving across the country. delayed a bunch of flights in san francisco yesterday. now it is moving over the mountains and expected to start dumping snow in oklahoma later today into tomorrow. there is also the threa